What you need to know about onion poisoning.

(Photo: Joe Raedle, Getty Images)The National Pork Board says a study shows people who eat onion-based sandwiches at least once a week are at higher risk of developing onion poisoning than those who eat only plain bread.

The agency also says eating onion-flavored baked goods may help lower the risk.

The agency says about 20% of Americans eat onion, and a recent survey showed about 6.7 million Americans eat it.

That’s more than double the 7.6 million people who ate bread in 2014.

In the study, the National Pork Council says people who consume at least one serving of onion bread in a week had a 1.7% higher risk than people who didn’t.

They were also at a 3.6% higher than those with a diet of only plain white bread.

The study was led by a researcher at Johns Hopkins University, who has also found that eating a variety of vegetables, fruits and nuts are a way to reduce the risk of onion poisoning, which is caused by exposure to the bacteria Pseudomonas aeruginosa.

The researchers say it is possible to reduce risk by reducing the amount of food eaten, but people who choose to limit their intake need to follow the guidelines outlined by the U.S. Food and Drug Administration.

The FDA says eating the recommended amount of vegetables and fruits and eating a diet rich in whole grains and legumes are the most effective ways to reduce exposure to Pseudonomyrmex.